How the 2Fuel System Works

2Fuel is classified as a Diesel Dual-Fuel (DDF) system. When operating any diesel engine in the DDF mode, with our 2Fuel system, the engine will consume a reduced amount of diesel fuel and a proportional amount of an alternative fuel will be substituted to maintain the engines original torque and horsepower, while blending the fuels, at a much lower operating cost.

The 2FUEL system has two selectable modes for operation, Mode 1 is Natural Gas, or Propane, with a pilot injection of diesel.

Mode 2 is 100% diesel operation. Mode 1 is where the benefits of the 2FUEL system can be realized.

Combustion

During the intake stroke natural gas, or propane, is mixed with air and injected into the piston cylinder. During the compression stroke, a smaller amount of diesel fuel is injected into the air/gas mixture, which immediately ignites the dual fuel mixture.

System Operation

The 2Fuel ECU communicates with the OEM Controller through CANBUS. We maintain two-way communication with the OEM Controller, and utilize all J1939 data supplied by the OEM controller to determine the precise amount of fuel to be delivered by the alternative fuel injectors, and the diesel fuel injectors, to maintain OEM torque and horsepower specifications.

The 2-FUEL ECU then calculates the amount of energy needed and controls the injectors to inject the needed ratio of both the diesel fuel and the natural gas, or propane.

In addition to injection control the ECU monitors various OEM sensors and parameters to enact safety measures for the engine.